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#7qARSkeKZspublic / public新版本

匿名已创建 4 days ago 过期于 3 days 20.5 KB 语法: text

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// ==UserScript==
// @name         X / Twitter Media Downloader
// @namespace    Violentmonkey Scripts
// @version      1.1.2
// @description  Download highest quality photos, videos, and GIFs on X/Twitter (desktop & mobile, including quoted tweets)
// @match        https://x.com/*
// @match        https://twitter.com/*
// @match        https://*.x.com/*
// @match        https://*.twitter.com/*
// @grant        GM_download
// @grant        GM_xmlhttpRequest
// @connect      twimg.com
// @connect      twitter.com
// @connect      x.com
// @require      https://cdn.jsdelivr.net/npm/gifshot@0.4.5/build/gifshot.min.js
// @run-at       document-start
// ==/UserScript==

(function () {
    'use strict';

const tweetMediaMap = new Map();

// Intercept media metadata from main page context
    window.addEventListener('message', (e) => {
        if (e.data && e.data.type === 'X_MEDIA_DATA') {
            tweetMediaMap.set(e.data.tweetId, e.data.mediaList);
        }
    });

// Inject interceptor into main page context to capture GraphQL responses
    function injectInterceptor() {
        const script = document.createElement('script');
        script.textContent = `(${function () {
            function parseTwitterApi(json) {
                if (!json || typeof json !== 'object') return;

function traverse(obj) {
                    if (!obj || typeof obj !== 'object') return;

if (obj.tweet_results?.result) {
                        extractFromTweet(obj.tweet_results.result);
                    }
                    if (obj.tweetResult?.result) {
                        extractFromTweet(obj.tweetResult.result);
                    }
                    if (obj.itemResult?.tweet_results?.result) {
                        extractFromTweet(obj.itemResult.tweet_results.result);
                    }
                    if (obj.__typename === 'Tweet' || obj.__typename === 'TweetWithVisibilityResults') {
                        extractFromTweet(obj);
                    }

for (let k in obj) {
                        if (Object.prototype.hasOwnProperty.call(obj, k)) {
                            traverse(obj[k]);
                        }
                    }
                }

function extractFromTweet(tweetObj) {
                    if (!tweetObj) return;
                    if (tweetObj.__typename === 'TweetWithVisibilityResults' && tweetObj.tweet) {
                        tweetObj = tweetObj.tweet;
                    }

const legacy = tweetObj.legacy;
                    const tweetId = legacy?.id_str || tweetObj.rest_id;
                    let mediaList = legacy?.extended_entities?.media || legacy?.entities?.media;

if (tweetId && mediaList && mediaList.length > 0) {
                        window.postMessage({ type: 'X_MEDIA_DATA', tweetId, mediaList }, '*');
                    }

// Handle Retweets
                    if (legacy?.retweeted_status_result?.result) {
                        extractFromTweet(legacy.retweeted_status_result.result);
                    }

// Handle Quoted Tweets explicitly
                    if (tweetObj.quoted_status_result?.result) {
                        extractFromTweet(tweetObj.quoted_status_result.result);
                    }
                }

traverse(json);
            }

injectInterceptor();

// Media Downloader via GM_download / GM_xmlhttpRequest
    function downloadMedia(url, filename) {
        return new Promise((resolve, reject) => {
            if (typeof GM_download === 'function') {
                try {
                    GM_download({
                        url: url,
                        name: filename,
                        onload: () => resolve(),
                        onerror: (err) => {
                            console.warn('GM_download error, falling back to XHR:', err);
                            downloadViaXHR(url, filename).then(resolve).catch(reject);
                        },
                        ontimeout: () => {
                            downloadViaXHR(url, filename).then(resolve).catch(reject);
                        }
                    });
                    return;
                } catch (e) {
                    console.warn('GM_download failed:', e);
                }
            }
            downloadViaXHR(url, filename).then(resolve).catch(reject);
        });
    }

function downloadBlob(blob, filename) {
        const url = URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url;
        a.download = filename;
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
        setTimeout(() => URL.revokeObjectURL(url), 10000);
    }

function processAndDownloadGif(videoUrl, btn) {
        btn.textContent = '⏳ Converting...';

gifshot.createGIF({
            video: [videoUrl],
            numFrames: 36,
            interval: 0.08,
            sampleInterval: 10,
            gifWidth: 480,
            numWorkers: 2
        }, async function (obj) {
            if (!obj.error) {
                const blob = dataURItoBlob(obj.image);
                downloadBlob(blob, `x_gif_${Date.now()}.gif`);
                btn.textContent = '✅ Saved GIF';
            } else {
                console.warn('GIF conversion error, saving as MP4:', obj.error);
                try {
                    await downloadMedia(videoUrl, `x_gif_${Date.now()}.mp4`);
                    btn.textContent = '✅ Saved MP4';
                } catch (e) {
                    btn.textContent = '❌ Failed';
                }
            }
            setTimeout(() => {
                btn.textContent = '⬇️ DL';
                btn.dataset.loading = 'false';
            }, 3000);
        });
    }

function findStatusIdInContainer(container) {
        if (!container) return null;

// Priority 1: Check time elements
        const timeLinks = container.querySelectorAll('time');
        for (let timeEl of timeLinks) {
            const link = timeEl.closest('a[href*="/status/"]');
            if (link) {
                const href = link.getAttribute('href') || '';
                const match = href.match(/status\/(\d{15,20})/);
                if (match) return match[1];
            }
        }

// Priority 2: Check any status link
        const links = container.querySelectorAll('a[href*="/status/"]');
        for (let link of links) {
            const href = link.getAttribute('href') || '';
            const match = href.match(/status\/(\d{15,20})/);
            if (match) return match[1];
        }

return null;
    }

// Resolves Tweet ID for both standard tweets and quoted tweets (including video-player testids)
    function getTweetId(element) {
        if (!element) return null;

// 1. Look inside media container for testids like "video-player-mini-ui-2086876306000482413"
        const testIdNodes = [element, ...element.querySelectorAll('[data-testid]')];
        for (const node of testIdNodes) {
            const testId = node.getAttribute?.('data-testid') || '';
            if (testId.includes('video-player') || testId.includes('tweet') || testId.includes('media')) {
                const match = testId.match(/(\d{15,20})/);
                if (match) return match[1];
            }
        }

// 2. Search status links inside current element
        const statusIdInSubtree = findStatusIdInContainer(element);
        if (statusIdInSubtree) return statusIdInSubtree;

// 3. Ascend DOM tree level-by-level
        let current = element.parentElement;
        while (current && current !== document.body) {
            const testIdNodesCurrent = [current, ...current.querySelectorAll('[data-testid]')];
            for (const node of testIdNodesCurrent) {
                const testId = node.getAttribute?.('data-testid') || '';
                if (testId.includes('video-player') || testId.includes('tweet') || testId.includes('media')) {
                    const match = testId.match(/(\d{15,20})/);
                    if (match) return match[1];
                }
            }

const statusId = findStatusIdInContainer(current);
            if (statusId) return statusId;

current = current.parentElement;
        }

// 4. Fallback to current URL
        const pageMatch = window.location.pathname.match(/status\/(\d{15,20})/);
        if (pageMatch) return pageMatch[1];

return null;
    }

// Fetches media details from cache or Twitter Syndication API fallback
    async function getMediaInfoForTweet(tweetId) {
        if (!tweetId) return null;

if (tweetMediaMap.has(tweetId)) {
            return tweetMediaMap.get(tweetId);
        }

try {
            const syndicationUrl = `https://cdn.syndication.twimg.com/tweet-result?id=${tweetId}&token=x`;
            const res = await new Promise((resolve, reject) => {
                if (typeof GM_xmlhttpRequest === 'function') {
                    GM_xmlhttpRequest({
                        method: 'GET',
                        url: syndicationUrl,
                        onload: (r) => {
                            if (r.status === 200) {
                                try { resolve(JSON.parse(r.responseText)); } catch (e) { reject(e); }
                            } else {
                                reject(r);
                            }
                        },
                        onerror: reject,
                        ontimeout: reject
                    });
                } else {
                    fetch(syndicationUrl).then(r => r.json()).then(resolve).catch(reject);
                }
            });

const mediaList = res?.mediaDetails || [];
            if (mediaList.length > 0) {
                tweetMediaMap.set(tweetId, mediaList);
                return mediaList;
            }
        } catch (e) {
            console.warn('Syndication API fallback error:', e);
        }

return null;
    }

function extractBestVideoFromMediaList(mediaList) {
        if (!mediaList || !Array.isArray(mediaList)) return null;

let bestVideoUrl = null;
        let maxBitrate = -1;
        let isGif = false;

for (const m of mediaList) {
            const variants = m.video_info?.variants || [];
            const currentIsGif = m.type === 'animated_gif';

for (const v of variants) {
                if ((v.content_type === 'video/mp4' || v.url?.includes('.mp4')) && v.url) {
                    const bitrate = v.bitrate || 0;
                    if (bitrate >= maxBitrate) {
                        maxBitrate = bitrate;
                        bestVideoUrl = v.url;
                        isGif = currentIsGif;
                    }
                }
            }
        }

if (bestVideoUrl) {
            return { url: bestVideoUrl, isGif };
        }
        return null;
    }

async function handleDownload(container, btn) {
        if (btn.dataset.loading === 'true') return;
        btn.dataset.loading = 'true';

try {
            // 1. Photo handling
            const img = container.querySelector('img[src*="twimg.com/media/"]');
            if (img && !container.querySelector('video')) {
                let src = img.src;
                try {
                    const u = new URL(src);
                    const format = u.searchParams.get('format') || 'jpg';
                    u.searchParams.set('format', format);
                    u.searchParams.set('name', 'orig');
                    src = u.toString();
                } catch (e) { }

btn.textContent = '⏳ Saving...';
                await downloadMedia(src, `x_photo_${Date.now()}.${src.includes('format=png') ? 'png' : 'jpg'}`);
                btn.textContent = '✅ Saved';
                setTimeout(() => { btn.textContent = '⬇️ DL'; btn.dataset.loading = 'false'; }, 3000);
                return;
            }

// 2. Video / GIF handling
            const video = container.querySelector('video');
            if (video) {
                btn.textContent = '⏳ Resolving...';
                const tweetId = getTweetId(container);
                let videoData = null;

if (tweetId) {
                    const mediaList = await getMediaInfoForTweet(tweetId);
                    if (mediaList) {
                        videoData = extractBestVideoFromMediaList(mediaList);
                    }
                }

// Fallback direct src
                if (!videoData) {
                    let src = video.src || video.currentSrc || '';
                    if (!src || src.startsWith('blob:')) {
                        const sourceEl = video.querySelector('source');
                        if (sourceEl) src = sourceEl.src;
                    }
                    if (src && !src.startsWith('blob:')) {
                        const isGif = src.includes('tweet_video') || video.loop || video.hasAttribute('data-is-gif');
                        videoData = { url: src, isGif };
                    }
                }

if (!videoData || !videoData.url) {
                    alert('Could not resolve video URL. Please try playing the video and click DL again.');
                    btn.textContent = '❌ Failed';
                    setTimeout(() => { btn.textContent = '⬇️ DL'; btn.dataset.loading = 'false'; }, 3000);
                    return;
                }

if (videoData.isGif || videoData.url.includes('tweet_video')) {
                    processAndDownloadGif(videoData.url, btn);
                } else {
                    btn.textContent = '⏳ Saving...';
                    await downloadMedia(videoData.url, `x_video_${Date.now()}.mp4`);
                    btn.textContent = '✅ Saved';
                    setTimeout(() => { btn.textContent = '⬇️ DL'; btn.dataset.loading = 'false'; }, 3000);
                }
            }
        } catch (err) {
            console.error('Download error:', err);
            btn.textContent = '❌ Error';
            setTimeout(() => { btn.textContent = '⬇️ DL'; btn.dataset.loading = 'false'; }, 3000);
        }
    }

function createDownloadButton() {
        const btn = document.createElement('button');
        btn.className = 'x-oneclick-dl-btn';
        btn.textContent = '⬇️ DL';
        btn.title = 'Download Media';

Object.assign(btn.style, {
            position: 'absolute',
            top: '10px',
            right: '10px',
            zIndex: '99999',
            backgroundColor: 'rgba(0, 0, 0, 0.75)',
            color: '#ffffff',
            border: '1px solid rgba(255, 255, 255, 0.3)',
            borderRadius: '20px',
            padding: '6px 12px',
            fontSize: '13px',
            fontWeight: 'bold',
            cursor: 'pointer',
            backdropFilter: 'blur(4px)',
            webkitBackdropFilter: 'blur(4px)',
            boxShadow: '0 2px 8px rgba(0,0,0,0.4)',
            userSelect: 'none',
            webkitUserSelect: 'none',
            touchAction: 'manipulation'
        });

return btn;
    }

function scanAndAttachButtons() {
        const selectors = [
            'div[data-testid="tweetPhoto"]',
            'div[data-testid="videoPlayer"]',
            'div[data-testid="videoComponent"]',
            'div[data-testid="tweetVideo"]',
            'div[data-testid="swipeable-media"]',
            'div[data-testid="slides"]'
        ];

const mediaContainers = document.querySelectorAll(selectors.join(', '));

mediaContainers.forEach(container => {
            if (container.dataset.hasDlBtn) return;

const computedStyle = window.getComputedStyle(container);
            if (computedStyle.position === 'static') {
                container.style.position = 'relative';
            }

const btn = createDownloadButton();

const stopEvents = (e) => {
                e.stopPropagation();
            };

btn.addEventListener('pointerdown', stopEvents);
            btn.addEventListener('touchstart', stopEvents, { passive: true });
            btn.addEventListener('click', (e) => {
                stopEvents(e);
                e.preventDefault();
                handleDownload(container, btn);
            });

container.appendChild(btn);
            container.dataset.hasDlBtn = 'true';
        });

function init() {
        const observer = new MutationObserver(() => scanAndAttachButtons());
        observer.observe(document.body, { childList: true, subtree: true });
        scanAndAttachButtons();
    }

if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', init);
    } else {
        init();
    }
})();